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3 years ago

PLEASE I NEED HELP!

Mathematics

2 answers:

N76 [4]3 years ago

4 0

Answer:Complete the statements.

When r = 2, the first expression is . 6

When r = 2, the second expression is 6.

When r = 5, the first expression is 21.

When r = 5, the second expression is .

The expressions are not equivalent. 12

Step-by-step explanation:

i got it right on e d g e n u i t y

Step-by-step explanation:

NARA [144]3 years ago

3 0

Fourth one i think (the way u typed the q is confusing)

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Given f(x) and g(x) = k·f(x), use the graph to determine the value of k

k0ka [10]

Answer:

$k=-5$

Step-by-step explanation:

If we observe the graph carefully there are two on each of the graphs highlighted at x=-2.The functions take the following values at that x.

$f(-2)=2$

$g(-2)=-10$

given the condition

$g(x)=k*f(x)$

put $x=-2$

we get . $-10=k*2$

$k=-5$

4 0

2 years ago

I need all parts answered please!

Arisa [49]

Width = w
d)length in term of width
w + 5
b)
2(w + w + 5) > 30
2(2w +5)>30

c)
solve
2(2w +5) > 30
4w + 10 > 30
4w > 20
w > 5

5 0

3 years ago

17. If x is a real number such that x3 = 729,

Nat2105 [25]

Answer:

C. 90

Step-by-step explanation:

If x^3 = 729, x = 9.

Then, plug that into x^2 + x

9 ^ 2 + 9 = 81 + 9 = 90

3 0

2 years ago

If gasoline costs 1.50 euros per liter it will cost how much to drive 220 kilometers

jok3333 [9.3K]

Answer:

$11.79\ euros$

Step-by-step explanation:

<u><em>The complete question is</em></u>

Suppose that a new fuel-efficient European car travels an average of 28 kilometers on 1 liter of gasoline. If gasoline costs 1.50 euros per liter, how much will it cost to drive 220 kilometers ?

step 1

using proportion

Find out the number of liters of gasoline needed for 220 kilometers

$\frac{28}{1}\ \frac{Km}{L}=\frac{220}{x}\ \frac{Km}{L}\\\\x=220/28\\\\x=7.86\ L$

step 2

Find the cost to drive 220 kilometers

Multiply the cost of one liter of gasoline by the total liters of gasoline needed to travel 220 Km

$1.50(7.86)=11.79\ euros$

6 0

2 years ago

6. Elena sells cakes for special occasions. She charges her customers a one-time design fee plus a rate for each

taurus [48]

I think it might be B but i’m not 100% sure

5 0

2 years ago

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